Question juridique clé
Whether the appeal had to be entered into despite non-payment of the requested advance on costs.
Solution extraite
The Court declined to enter into the appeal because the appellant failed to pay the cost advance even within the extended deadline.
Motifs extraits
Under Art. 62 paras. 1 and 3 BGG, the Federal Supreme Court may set a deadline and a grace period for the cost advance; if it remains unpaid, the Court must not enter into the filing.